(19)
(11) EP 0 291 313 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.05.1990 Bulletin 1990/18

(43) Date of publication A2:
17.11.1988 Bulletin 1988/46

(21) Application number: 88304322.6

(22) Date of filing: 12.05.1988
(51) International Patent Classification (IPC)4: G03G 15/04, G02B 27/00, H04N 1/12
(84) Designated Contracting States:
DE GB IT NL

(30) Priority: 14.05.1987 JP 117684/87

(71) Applicant: KONICA CORPORATION
Tokyo 160 (JP)

(72) Inventors:
  • Murahashi, Takashi
    Hachioji-shi Tokyo (JP)
  • Fujita, Hisao
    Hachioji-shi Tokyo (JP)
  • Nakazawa, Toshihiko
    Hachioji-shi Tokyo (JP)
  • Takesue, Toshihiro
    Hachioji-shi Tokyo (JP)
  • Motoi, Toshihiro
    Hachioji-shi Tokyo (JP)

(74) Representative: Wood, Anthony Charles et al
Urquhart-Dykes & Lord 91 Wimpole Street
London W1M 8AH
London W1M 8AH (GB)


(56) References cited: : 
   
       


    (54) Image recording apparatus


    (57) An image recording apparatus comprises: a light beam generator (11); a focusing element (14) for focusing a light beam generated by said light beam generator, a deflector (15) for deflecting the light beam passing through said focusing element, so that the light beam scans a recording medium (16) to record predetermined image information; and an image surface correction optical means (30) arranged between said deflector and said recording medium for correcting a curvature of field in the main scanning direction. The image surface correction optical means (30) may be a lens having at least one aspherical surface, such as a modified cylindrical surface.







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